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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Oseltamivir Impurity 103
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 101
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 90
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 79
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 73
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 69
- CAS:
- MF:
- Structure:
- Chemical Name:10-methoxy-6-methylergoline-8beta-methanol
- CAS:35121-60-9
- MF:C17H22N2O2
- Structure:
- Chemical Name:Azilsartan medoxomil impurity261
- CAS:2514957-39-0
- MF:C16H16FN3O4
- Structure:
- Chemical Name:Propanoic acid, 2,2-dimethyl-, 4-[[[2-[[(2-methoxy-2-oxoethyl)amino]carbonyl]phenyl]amino]sulfonyl]phenyl ester
- CAS:127373-95-9
- MF:C21H24N2O7S
- Chemical Name:Fulvestrant Impurity 1
- CAS:
- MF:
- Chemical Name:CefazolinH020-02-I-02
- CAS:
- MF:
- Structure:
- Chemical Name:(E)-3-[cyano(2,3-dichlorophenyl)methylene]carbazamidine
- CAS:94213-24-8
- MF:C9H7Cl2N5
- Structure:
- Chemical Name:5-Pyrimidinecarboxylic acid, 4-amino-6-[1-[(1R)-2-cyano-1-cyclopentylethyl]-1H-pyrazol-4-yl]-
- CAS:2606144-44-7
- MF:C16H18N6O2
- Structure:
- Chemical Name:3-Quinolinecarboxylic acid, 7-[(4aS,7aS)-1-acetyloctahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-
- CAS:1395471-26-7
- MF:C23H26FN3O5
- Structure:
- Chemical Name:N-[3-acetyl-4-(oxiranylmethoxy)phenyl]butyramide
- CAS:28197-66-2
- MF:C15H19NO4
- Structure:
- Chemical Name:8-isopropyl-8-azabicyclo[3.2.1]octan-3-one
- CAS:3423-28-7
- MF:C10H17NO
- Structure:
- Chemical Name:3-[(2-[(E)-2-(3-ETHYL-1,3-BENZOTHIAZOL-3-IUM-2-YL)ETHENYL]-6-((E)-2-[3-ETHYL-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]ETHYLIDENE)-4-METHYL-1-CYCLOHEXEN-1-YL)OXY]-1-PROPANESULFONATE
- CAS:
- MF:C32H36N2O4S3
- Chemical Name:Bimatoprost Impurity 15
- CAS:
- MF:
- Structure:
- Chemical Name:Bisoprolol Impurity 9
- CAS:59383-52-7
- MF:C15H25NO3
- Chemical Name:Empagliflozin Impurity 87
- CAS:
- MF:
- Structure:
- Chemical Name:Aztreonam Impurities 06
- CAS:730928-60-6
- MF:C26H34N10O16S4
- Structure:
- Chemical Name:Lenvatinib Impurity LFZZ-9
- CAS:
- MF:C43H38Cl2N8O8
- Chemical Name:Rosuvastatin Impurity 118
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 117
- CAS:
- MF:
- Structure:
- Chemical Name:Cytarabine Impurity 10
- CAS:84902-98-7
- MF:C4H6N2O3
- Chemical Name:Ticagrelor Impurity 108
- CAS:
- MF:
- Structure:
- Chemical Name:4-Piperidinecarboxylic acid, 1-[5-[[[4-(4-chloro-2-thienyl)-5-(4-cyclohexyl-1-piperazinyl)-2-thiazolyl]amino]carbonyl]-3-hydroxy-2-pyridinyl]-
- CAS:1290121-42-4
- MF:C29H35ClN6O4S2
- Structure:
- Chemical Name:1H-Pyrrole-3-methanamine, 1-[(1,6-dihydro-3-pyridinyl)sulfonyl]-5-(2-fluorophenyl)-N-methyl-
- CAS:2416241-95-5
- MF:C17H18FN3O2S
- Structure:
- Chemical Name:Dolutegravir Impurity 8
- CAS:2244161-72-4
- MF:C20H19F2N3O5
- Structure:
- Chemical Name:5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[[(aminocarbonyl)oxy]methyl]-7-methoxy-7-[[(2S)-2-methoxy-2-(2-thienyl)acetyl]amino]-8-oxo-, (6R,7S)-
- CAS:2395025-37-1
- MF:C17H19N3O8S2
- Structure:
- Chemical Name:Atorvastatin Impurity 83
- CAS:1807481-00-0
- MF:C33H35F2N2NaO5
- Structure:
- Chemical Name:Cyclophosphamide Impurity 20
- CAS:2387771-96-0
- MF:C9H20ClN2O3P
- Structure:
- Chemical Name:Loteprednol Etabonate Ethyl Ester (Prednisolone 20-Ethyl Ester)
- CAS:182069-19-8
- MF:C25H34O7
- Structure:
- Chemical Name:Hexanamide, N-[(1S)-1-(aminocarbonyl)propyl]-3-(hydroxymethyl)-, (3R)-
- CAS:2252417-17-5
- MF:C11H22N2O3
- Structure:
- Chemical Name:1H-Benzimidazole-6-carboxylic acid, 4-hydroxy-2-methyl-1-(phenylmethyl)-, ethyl ester
- CAS:1640981-16-3
- MF:C18H18N2O3
- Structure:
- Chemical Name:Benzoic acid, 2-chloro-4-nitro-, 2-(diethylamino)ethyl ester
- CAS:10367-96-1
- MF:C13H17ClN2O4
- Chemical Name:(2S,5R)-2-carbamoyl-7-oxo-1,6-diazabicyclo[3.2.1]octan-6-yl isopropyl sulfate
- CAS:
- MF:
- Structure:
- Chemical Name:Benzenepropanoic acid, 2,4-dichloro-α-[(dimethylamino)methylene]-3-methyl-β-oxo-, ethyl ester
- CAS:2241304-69-6
- MF:C15H17Cl2NO3
- Structure:
- Chemical Name:Benzonitrile, 4-[3-[(acetyloxy)methyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-
- CAS:2227126-13-6
- MF:C22H24BNO5
- Structure:
- Chemical Name:(Z)-2-[[[(2-Amino-4-thiazolyl)[[(2S,3S)-2-methyl-4-oxo-1-sulfo-3-azetidinyl] carbamoyl]methylene]amino]oxy]-2-methylpropionic acid methyl ester
- CAS:1255912-98-1
- MF:C14H19N5O8S2
- Structure:
- Chemical Name:Benzeneacetic acid, α-1-cyclopenten-1-yl-α-hydroxy-, (αR)-
- CAS:185030-09-5
- MF:C13H14O3
- Structure:
- Chemical Name:1H-Pyrrole-1-acetic acid, α-ethyl-2,5-dihydro-2-oxo-4-propyl-, (αS)-
- CAS:2170761-55-2
- MF:C11H17NO3
- Chemical Name:Revefenacin ImpurityABCDEFGHJKL
- CAS:
- MF:
- Chemical Name:Peramivir Impurity 57
- CAS:
- MF:
- Structure:
- Chemical Name:2-Thiazolamine, 4-(5-bromo-4-chloro-2-thienyl)-
- CAS:1534575-19-3
- MF:C7H4BrClN2S2
- Chemical Name:NA
- CAS:
- MF:
- Chemical Name:BrivaracetamImpurity ABCDEFGHJKL
- CAS:
- MF:
- Structure:
- Chemical Name:DEHYDRO FELODIPINE-13C4
- CAS:96382-71-7
- MF:C18H17Cl2NO4
- Chemical Name:Avatrombopag Impurity 24
- CAS:
- MF:
- Chemical Name:Piperacillin Impurity N
- CAS:
- MF:
- Structure:
- Chemical Name:2-(1-(dimethylamino)ethyl)phenol 2,3-dihydroxysuccinate
- CAS:26050-44-2
- MF:C10H15NO
- Structure:
- Chemical Name:1,11-ditosyl-1,4,8,11-tetraazacyclotetradecane dihydrochloride
- CAS:117152-73-5
- MF:C24H36N4O4S2
- Structure:
- Chemical Name:Benzonitrile, 3-(1,3,2-dioxaborinan-2-yl)-
- CAS:684648-40-6
- MF:C10H10BNO2
- Structure:
- Chemical Name:3-CHLORO-N-(3-METHOXYPHENYL)PROPANAMIDE
- CAS:21261-76-7
- MF:C10H12ClNO2
- Structure:
- Chemical Name:Amlodipine Impurity 31
- CAS:496024-43-2
- MF:C20H22ClNO5
- Chemical Name:Fudosteine Impurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:Rasagiline Impurity 4
- CAS:1175018-79-7
- MF:C12H14ClN
- Structure:
- Chemical Name:Miconazole EP Impurity F
- CAS:47447-55-2
- MF:C18H14Cl4N2O
- Structure:
- Chemical Name:Raltegravir USP RC E
- CAS:1193687-87-4
- MF:C20H22N6O5
- Structure:
- Chemical Name:Dehydronitrosonisoldipine
- CAS:87375-91-5
- MF:C20H22N2O5
- Structure:
- Chemical Name:Brexpiprazole Impurity 49
- CAS:1700655-67-9
- MF:C13H14N2O2S
- Structure:
- Chemical Name:Etoricoxib Impurity 38
- CAS:887479-63-2
- MF:C13H17NO2S
- Structure:
- Chemical Name:Pemetrexed Impurity 19
- CAS:1644286-36-1
- MF:C20H21N5O8
- Chemical Name:Empagliflozin Impurity 31
- CAS:
- MF:
- Structure:
- Chemical Name:Iguratimod
- CAS:123663-50-3
- MF:C18H16N2O6S
- Structure:
- Chemical Name:Imidafenacin Related Compound 10
- CAS:212756-27-9
- MF:C21H23N3O
- Structure:
- Chemical Name:Aprepitant
- CAS:1242175-36-5
- MF:C20H18F7NO2
- Structure:
- Chemical Name:Idebenone Impurity 5
- CAS:88543-33-3
- MF:C18H28O5
- Structure:
- Chemical Name:Entacapone Impurity 4
- CAS:1202160-40-4
- MF:C11H8N2O6
- Structure:
- Chemical Name:L-Leucine, N-formyl-, (1S)-1-[[(2S,3S)-3-hexyl-4-oxo-2-oxetanyl]methyl]tridecyl ester
- CAS:1119226-56-0
- MF:C30H55NO5
- Structure:
- Chemical Name:Itraconazole Impurity 17
- CAS:854372-78-4
- MF:C14H15Cl2N3O5S
- Structure:
- Chemical Name:sodium (41S,12R,13aS)-13a-ethyl-12-hydroxy-2,3,41,5,6,12, 13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5] naphthyridine-12-carboxylate
- CAS:53448-45-6
- MF:C20H24N2O3
- Structure:
- Chemical Name:Rivaroxaban Impurity 35
- CAS:2206360-74-7
- MF:C23H24N4O6
- Structure:
- Chemical Name:Tirofiban hydrochloride monohydrate Impurity 7
- CAS:2250244-28-9
- MF:C13H19NO5S
- Chemical Name:Acarbose Impurity G
- CAS:
- MF:
- Structure:
- Chemical Name:Imidafenacin Related Compound 7
- CAS:191592-57-1
- MF:C16H13N
- Structure:
- Chemical Name:17β-Cyanmethyl-oestra-1,3,5(10)-trien-3,17β-diol
- CAS:16669-06-0
- MF:C20H25NO2
- Chemical Name:Cefaclor Impurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Cephalexin Impurity 6
- CAS:
- MF:C16H17N3O4S
- Chemical Name:Pitavastatin Impurity 42
- CAS:
- MF:
- Structure:
- Chemical Name:Rocuronium bromide Impurity J
- CAS:
- MF:C32H53BrN2O4
- Chemical Name:Tofacitinib Impurity 72
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 81
- CAS:
- MF:
- Structure:
- Chemical Name:Topiroxostat Impurity 9
- CAS:2044708-04-3
- MF:C7H10N6O
- Chemical Name:Vinorelbine EP Impurity C
- CAS:
- MF:
- Chemical Name:Atracurium Impurity 26
- CAS:
- MF:
- Chemical Name:Aztreonam Impurity 2
- CAS:
- MF:
- Structure:
- Chemical Name:Benazepril Impurity E
- CAS:
- MF:C24H28N2O5
- Chemical Name:Canagliflozin Impurity 44
- CAS:
- MF:
- Chemical Name:Clotrimazole Impurity 3
- CAS:
- MF:
- Structure:
- Chemical Name:Cisatracurium besylate impurity 20
- CAS:96946-54-2
- MF:C59H77N2O15S+
- Structure:
- Chemical Name:N-Desmethylondansetron
- CAS:99614-14-9
- MF:C17H17N3O
- Structure:
- Chemical Name:CHEMPACIFIC 59929
- CAS:856240-62-5
- MF:C18H24O4
- Chemical Name:Linagliptin ImpurityABCDEF
- CAS:
- MF: